(1S,2S,5S,6S)-5,6-dihydroxy-6-methylcyclo-hex-3-en-1,2-diyl diacetate

The title compound, C11H16O6, has been synthesized and isolated as the majo r product of the osmylation of (5S,6R)-5,6-diacetoxy-1-methyl-1,3-cyclohexa diene. The molecule crystallizes in the monoclinic space group P2(1). The h exene ring exhibits a puckered distorted half-chair conformation, with all the chiral centres (C3, C4, C5 and C6) in the S configuration. One intramol ecular and two intermolecular hydrogen bonds stabilize the molecule by the formation of infinite chains along b.